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Finding the Fourth Proportional to 68,365.80, 102,606.30 and 33,335.40

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Solution

The fourth proportional to 68,365.80, 102,606.30 and 33,335.40 is: 50,031.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,365.80 : 102,606.30 = 33,335.40 : x
  2. Step 2: Convert to fraction form
    68,365.80/102,606.30 = 33,335.40/x
  3. Step 3: Cross multiply
    68,365.80x = 102,606.30 × 33,335.40
  4. Step 4: Simplify right side
    68,365.80x = 3,420,422,053.02
  5. Step 5: Solve for x
    x = 3,420,422,053.02/68,365.80
  6. Step 6: Final answer
    x = 50,031.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.